public static function pi()
{
if (self::$PI === null) {
self::$PI = Decimal::fromString("3.14159265358979323846264338327950");
}
return self::$PI;
}
public function testFiniteAbs() { $this->assertTrue(DecimalConstants::pi()->equals(Decimal::fromString("3.14159265358979323846264338327950"))); $this->assertTrue(DecimalConstants::eulerMascheroni()->equals(Decimal::fromString("0.57721566490153286060651209008240"))); $this->assertTrue(DecimalConstants::goldenRatio()->equals(Decimal::fromString("1.61803398874989484820458683436564"))); $this->assertTrue(DecimalConstants::lightSpeed()->equals(Decimal::fromInteger(299792458))); }